/ Dictionary / Index H hep: Meaning and Definition of Find definitions for: hep Pronunciation: (hep), [key] — adj. Older Slang. hip. hep Pronunciation: (hut, hup, hep), [key] — interj. one (used in counting cadence while marching). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hep (Thesaurus) heortology heparin Related Content Daily Word Quiz: braggart Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language